Base | Representation |
---|---|
bin | 1111111001110… |
… | …00011001001111 |
3 | 100022000102121001 |
4 | 13330320121033 |
5 | 233122301033 |
6 | 21123121131 |
7 | 3206611462 |
oct | 774703117 |
9 | 308012531 |
10 | 133400143 |
11 | 69334558 |
12 | 388131a7 |
13 | 218392c6 |
14 | 13a072d9 |
15 | baa0e7d |
hex | 7f3864f |
133400143 has 2 divisors, whose sum is σ = 133400144. Its totient is φ = 133400142.
The previous prime is 133400119. The next prime is 133400171. The reversal of 133400143 is 341004331.
It is a weak prime.
It is an emirp because it is prime and its reverse (341004331) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 133400143 - 221 = 131302991 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 133400143.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (133400243) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66700071 + 66700072.
It is an arithmetic number, because the mean of its divisors is an integer number (66700072).
Almost surely, 2133400143 is an apocalyptic number.
133400143 is a deficient number, since it is larger than the sum of its proper divisors (1).
133400143 is an equidigital number, since it uses as much as digits as its factorization.
133400143 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 432, while the sum is 19.
The square root of 133400143 is about 11549.8979649173. The cubic root of 133400143 is about 510.9582688107.
Adding to 133400143 its reverse (341004331), we get a palindrome (474404474).
The spelling of 133400143 in words is "one hundred thirty-three million, four hundred thousand, one hundred forty-three".
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